Machine for operating upon shoe-soles



J. H. HIGBY. MACHINE FOR OPERATING UPON SHOE SOLES.

APPLICATION FILED FEB. 10, (916.

1 35 1 ,065, Patented Aug. 31, 1920.

JOHN H. RIGBY, OF BEVERLY, ILVLASSAGHUS-ETTS, ASSIGNGR, BY I/IESNE ASSIGNMENTS,

TO UNITED SHOE MACHINERY SGZEPORAT'LUN, (3F PATEBSGN, NEW? JERSEY, A. (301%- LPORA'IION, OF NEVJ JERSEY.

MACHINE FGR OPERATING. UIUN SEGE-SGLES.

Application filed February 10, 1916.

T 0 aZZ whom it may concern.-

Be it known that 1, JOHN H. RIGBY, a citizen of the United States, residing at Beverly, in the county of Essex and State of l iassachusetts, have invented certain new and useful Improvements in Machines for Operating upon Shoe-doles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the artto which it appertains to make and use the same.

This invention relates to machines for operating upon the marginal portions of shoe soles, and more particularly to a machine for burnishing ornamental impressions or indentations upon shoe soles. Inornamenting the marginal portion of a shoe sole, it is the common practice to preliminarily place indentations or impressions on the sole, then ink them, and then burnish the inked impressions or indentations. tool used for burnishing the indentations is generally heated by a aas flame which is directed upon the tool. llany of the inks used upon the soles are inflammable, and when they are brought into contact with the flame by the burnishing tool, a soot 01 smudge is formed which often discolors the sole, and is very disagreeable to the operative. The action of the naked flame upona part of the tool in heating it also tends to draw the temper from the tool and render it" unfit for use.

The primary object of the present inven- 7 tion is to provide a heating device for the tool of an indenting or impression burnishing machine whichwill eiiiciently heat the burnishing tool and overcome the above objections.

In accordance with this object, one feature of the invention contemplates the pro-- vision in a'machine "for operating upon the marginal portion of a shoe sole having a sole support and a tool comprising a carrier and a working element for operatingupon the sole, which is actuated to give a rubbing pressure to the sole, oii'a heating blockheld in contact with the carrier, and means to uniformly heat the block to heat the tool by conduction.

In the preferred form of the invention the heating block is constructed with a com paratively large volume of good heat con- The Specification of Letters Patent. Pflbtzgfilt@fi A ug 3L jpggg Serial No. 77,395.

ducting metal which is heated by an electric resistance heating unit. The heating block is fixed on a bushing which guides the carrier, and is held directly in contact with the carrier, so that the heat is conducted directly to the tool.

The invention also includes certain teatures of construction and combinations of parts hereinafter described and pointed out in the appended claims.

The various features of the invention are illustrated in the accompanying drawings, in which Figure 1 is a view in side elevation of the upper portion of an impression stitch burnishing machine of well-known construction; Fig. 2 is a View in vertical section of the machine shown in Fig. 1; and Fig. 3 is a detail view showing the heating block in section and. illustrating its connection on the machine head.

The impression stitch burnishing machine illustrated in the drawings has substantially the same construction and operation of parts as the machine shown in the patent to Flynt, No. 84:5,939', dated March 5, 1907. This ma chine has a support 10 for the sole, and an indenting and burnishing tool which comprises a working element 12 which is mounted upon a carrier or plunger 14. The plunger 1% is slidably mounted in the ma chine head 16, and is reoiprocated to rub the working element across the face i the sole, by means of a cam on the main driving shaft 18. The head 16 is rotatably mounted upon the shaft 18, and is yieldingly pressed by means of a spring 20 toward an abutment screw 22. The spring 20 acts to clamp the sole between the burnishing tool and the support 10 during the indenting operation, so that the tool gives a rubbing pressure upon the sole. The parts above described are the same as those shown in the patent above referred to, and reference is hereby made to said patent for: a detailed descrip tion of the parts. i

In order to heat the tool during the operation of the machine, a block having a comparatively large volume of metal is heated by means of an electrical resistance unit and held in contact with the tool carrier. The heating block 24: has a sleeve 26 which is arranged to fit over a flange 28- on a bushing 30 which is mounted in the ma chine head and acts as a guide for the ing carrier and a workingelement mount ed thereon, a bushing for guiding said carrier, means associated With said bushing and having a sliding engagement with said carrier for heating said tool by conduction, and means for reciprocating said tool in a direction transverse to the edge of the sole operated upon.

6. A shoe machine having, in combination, a support for a shoe, a tool for operating upon a shoe on said support, means for clamping the shoe between the tool and the support, a heated contact block in engagement with the tool, and means for reciproeating said tool across the engaging face of the contact block while operating upon the shoe.

7. A shoe machine having, in combination, a support for a shoe, a tool for operating upon the shoe on said support, means for clamping the shoe between the support and the tool, means for rapidly reciprocating said tool, a relatively stationary bushing for guiding the tool, a heating member carried by said bushing and having a sliding engagement with said tool, and electrical means associated with said member for supplying heat thereto and thereby heating the tool by conduction.

8. A shoe machine having, in combination, a rapidly reciprocating tool for operating upon a shoe, movable means for supporting and guiding said tool, a heated member associated with said movable supporting and guiding means and having a sliding engagement with said reciprocatlng tool, and means for moving said movable supporting and guiding means to yieldingly hold the tool in working engagement with the shoe.

JOHN H. RIGBY. 

